Dust-guard for car-axle boxes.



A. CURRIE. DUST GUARD FOB GAR AXLE amass.

APPLICATION FILED NOV- H). SH

Patented Dec. 10, 1918.

ALEXANDER CURRIE, 0F YONKERS, NEW YORK.

DUST-GUARD non OAR-AXLE BOXES.

Specification of Letters Patent.

Patenteaneeao, 1918.

Application filed November 10, 1917. Serial No. 201,361,

To all whom it may concern: I

Be it known that I, ALEXANDER C-unnm, a citizen of Canada, residentofYonkers, in the county of Vestchester and State of New York, haveinvented certain new and useful Improvements in Dust-Guards for Car-AxleBoxes, of which the following is a specification.

This invention relates to dust guards for car axle boxes and moreparticularly to a one-piece metallic dust guard adapted to supportitself independently of the axle in the dust guard slot, the inventionbeing an improvement in the type of dust guard shown in the patent toHarry G. Gamage, No.1,015,551.

The invention-has for an object to provide a self supporting metallicdust guard of simple construction in which the danger of the dust guardbeing rendered non-selfsupporting from either defective application ofthe dust guard to an axle box, or application of the guard to adefective box, or for other causes, will be reduced to a minimum.

Figure 1 of the drawings is an inside face View of a dust guardembodying the invention.

Fig. 2 is a transverse vertical section on the line 22 of Fig. 1.

Fig. 3 is a side elevation.

Fig. 4 is a horizontal section on the line 44 of Fig. 1.

Fig. 5 is a horizontal section on the line 55 of Fig. 2.

Figs. 6 to 9 inclusive are similar views to Figs. 1 to 4 of a modifiedform of guard.

My improved dust guard, as shown in Figs. 1 to 5, comprises a singleplate 2 of resilient metal, preferably soft steel, and

having formed therein an axle opening 4 surrounded by a collar 5, thisopening being disposed approximately centrally of the plate- The upperend of the plate is flanged over as at 6 on the same side as the collar5, this flange in vertical section being in the form of a double curvewhose extreme edge 6' bends backwardly toward the body of the plate.This upper flange preferably extends substantially the full width of theplate throughout its entire area although the up per corners may becurved slightly inward as at 7.

The lower end of the dust guard is also flanged over as at 10 on thesame side as the flange 6, this flange 10 being also preferably of thesame double curve shape as the flange 6 and bendingback toward the bodyof the plate at its edge as at 10.

In the present instance I have shown the lower flange as being ofrounded outline, thus 1 permitting of installation of the guard inelther round or square bottom boxes, while the diminished size of thelower flange renders the guard more easy of insertion in the dust guardslot.

To reinforce the bodv of the guard whereit is weakened by the axleopening 4 the side portions of the plate are preferably bent in agradual curve in the same direction as the collar 5, as shown at 15,thus providing in effect shallow stiffening flanges which merge at theirends into the upper and lower flanges. As will be apparent the platebody is stiffened by a flange extending continuously around all foursides thereof and which is extended to a greater depth on two of itsopposite sides to constitute the top and bottom resilient flanges 6 and10, while in conjunction with the collar 5 an arched structure isprovided.

I have indicated the cross sectional outline of the dust guard slot at18 in Fig. 2 to show the position of the guard therein, but it is notthought necessary to further illustrate or describe the application ofthe guard to an axle box, this being similar to the Gamage guard abovementioned which is well known to the art, the flanges being suffisilientpressure, while at the same time, a

structure is provided which eliminates the tendency to permanentdistortion of the guard found in the Gamage guard.

In the modification shown in Figs. 6-to 9 the guard is composed of asteel plate 20 of the same general outline as that shown in Fig. 1 andhaving an axle opening 21 surrounded by a collar 22.

Projecting laterally from the upper end 1 of this plate is a flange 23similar to the flange 6, while on opposite sides of the axle opening themetal is flanged in. as at 24 to stiflen the plate.

In this modification the whole plate extends downwardly at an angle tothe general plane of the dust guard slot so as to cause the unflangedbottom thereof to bear on the same wall of the slot as the flange 23.

This construction greatly facilitates insertion of the guard in theslot, as there is no frictional holding contact until the upper flangeenters the slot, while the stiffening of the plate intermediateits endsinsures of the transmission of sufficient pressure to the lowerresilient portion 1 of the plate without any buckling of the body of theplate. What I claim is:

1. A dust guard for car axle boxes comprising a single plate having aflanged cen- 10 tral opening adapted to receive thecar axle,

said plate being formed with a peripheral flange extending continuouslytherearound,

' said flange being extended to a greater depth on two opposite sides ofthe plate to consti- 15 tute resilient supporting members. 7

2. A dust guard for car axle boxes comprising a single plate havingresilient supporting portions at upper and lower ends and an opening toreceive the axle, and side flanges merging into said supporting portionswhereby the body of the plate is stifiened.

Signed at Yonkers, in the county of Westchester and State of New Yorkthis 9th day of November A. D. 1917 ALEXANDER- CURB-IE.

' Witnesses:

JOHN HOWARD, Jr., W. B. HAMMOND.

Copies of this patent inay be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. G.

